Adapt to old_id

internal/domains/product/entities/product.go

@@ -11,6 +11,7 @@ import (
 // Product 产品实体
 type Product struct {
 	ID          string          `gorm:"primaryKey;type:varchar(36)" comment:"产品ID"`
+	OldID       *string         `gorm:"type:varchar(36);index" comment:"旧产品ID，用于兼容"`
 	Name        string          `gorm:"type:varchar(100);not null" comment:"产品名称"`
 	Code        string          `gorm:"type:varchar(50);uniqueIndex;not null" comment:"产品编号"`
 	Description string          `gorm:"type:text" comment:"产品简介"`
@@ -94,4 +95,22 @@ func (p *Product) SetAsPackage() {
 
 func (p *Product) IsCombo() bool {
 	return p.IsPackage
+}
+
+// SetOldID 设置旧ID
+func (p *Product) SetOldID(oldID string) {
+	p.OldID = &oldID
+}
+
+// GetOldID 获取旧ID
+func (p *Product) GetOldID() string {
+	if p.OldID != nil {
+		return *p.OldID
+	}
+	return ""
+}
+
+// HasOldID 检查是否有旧ID
+func (p *Product) HasOldID() bool {
+	return p.OldID != nil && *p.OldID != ""
 }

internal/domains/product/repositories/product_repository_interface.go

@@ -13,6 +13,7 @@ type ProductRepository interface {
 
 	// 基础查询方法
 	FindByCode(ctx context.Context, code string) (*entities.Product, error)
+	FindByOldID(ctx context.Context, oldID string) (*entities.Product, error)
 	FindByCategoryID(ctx context.Context, categoryID string) ([]*entities.Product, error)
 	FindVisible(ctx context.Context) ([]*entities.Product, error)
 	FindEnabled(ctx context.Context) ([]*entities.Product, error)

internal/domains/product/services/product_management_service.go

@@ -105,6 +105,32 @@ func (s *ProductManagementService) GetProductWithCategory(ctx context.Context, p
 	return &product, nil
 }
 
+// GetProductByOldIDWithCategory 根据旧ID获取产品及其分类信息
+func (s *ProductManagementService) GetProductByOldIDWithCategory(ctx context.Context, oldID string) (*entities.Product, error) {
+	product, err := s.productRepo.FindByOldID(ctx, oldID)
+	if err != nil {
+		return nil, fmt.Errorf("产品不存在: %w", err)
+	}
+
+	// 加载分类信息
+	if product.CategoryID != "" {
+		category, err := s.categoryRepo.GetByID(ctx, product.CategoryID)
+		if err == nil {
+			product.Category = &category
+		}
+	}
+
+	// 如果是组合包，加载子产品信息
+	if product.IsPackage {
+		packageItems, err := s.productRepo.GetPackageItems(ctx, product.ID)
+		if err == nil {
+			product.PackageItems = packageItems
+		}
+	}
+
+	return product, nil
+}
+
 // GetPackageItems 获取组合包项目列表
 func (s *ProductManagementService) GetPackageItems(ctx context.Context, packageID string) ([]*entities.ProductPackageItem, error) {
 	packageItems, err := s.productRepo.GetPackageItems(ctx, packageID)